WC
William N. Costaras
MCDONALD PARTNERS LLC
Cleveland, OH 44114
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CRD#: 54875
WC
Professional summary
William N Costaras is a registered financial professional currently at MCDONALD PARTNERS LLC located in Cleveland, Ohio.
William is registered as a RR (Registered Representative) and started their career in finance in 1973. William has worked at 8 firms and has passed the Series 7TO, Series 57TO, SIE, Series 55, Series 3, PC and Series 1 exams.
Question & Answer
Are you a "fiduciary"?
No
Aliases
None
Other business activities
Outside business activity is any business or activity undertaken by an advisor that is outside the scope of their relationship with their firm (e.g., consulting services, real estate, freelance work, teaching, etc.). Investors should stay informed about these activities to ensure no conflicts of interest.
The advisor shows no other business activity.
CRS (Client Relationship Summary) - BD
Click below to view William N Costaras's CRS (Customer Relationship Summary).
Certified licenses
Advisors may have various certifications and credentials from different organizations. AdvisorCheck highlights these seven certifications - AIF®, CFP®, ChFC®, CFA, CLU®, CIMA®, CPWA®
NoneExperience
Current
January 5, 2015 - Present
MCDONALD PARTNERS LLC
Office #1: 1301 East 9th Street Suite 3700, Cleveland, OH 44114Office #2: 23811 Chagrin Blvd Suite 275, Beachwood, OH 44122Office #3: 1301 East 9th Street Suite 3700, Cleveland, OH 44114RIA
BD
CRD#: 135414
Cleveland, OH
Past
June 9, 2000 - February 2, 2015
RAMAT SECURITIES LTD.
BD
CRD#: 37670
BEACHWOOD, OH
Past
September 4, 1990 - June 7, 2000
WELLS FARGO CLEARING SERVICES, LLC
BD
CRD#: 19616
ST. LOUIS, MO
Past
August 14, 1978 - September 4, 1990
PRESCOTT, BALL & TURBEN, INC.
BD
CRD#: 7656
Past
February 4, 1977 - August 14, 1978
PRESCOTT, BALL & TURBEN
BD
CRD#: 7342
Past
April 5, 1976 - February 4, 1977
PRESCOTT, BALL & TURBEN
BD
CRD#: 7101
Past
November 15, 1974 - April 5, 1976
PRESCOTT, BALL & TURBEN
BD
CRD#: 6532
Past
June 18, 1974 - December 13, 1974
FULTON, REID & STAPLES, INC.
BD
CRD#: 336
Past
August 24, 1973 - June 1, 1974
PRESCOTT, BALL & TURBEN
BD
CRD#: 7101
Past
June 21, 1973 - August 24, 1973
PRESCOTT, BALL & TURBEN
BD
CRD#: 6532
Primary Firm SEC Registration
This SEC-registered firm can serve clients nationwide. Some states may require the firm to submit a notice filing if the firm has more than 5 clients or a physical office there. You can view these state-level filings under the section titled "State Registrations and Notice Filings".
MP
MCDONALD PARTNERS LLC
MCDONALD MANAGEMENT LLC | THOMAS MCDONALD PARTNERS, LLC | THOMAS MCDONALD & ASSOCIATES LLC | THOMAS MCDONALD & ASSOCIATES | MPCF LLC | MPCF II LLC | MP127 LLC | MP DPI LLC | MCDONALD USAF GP LLC | MCDONALD PARTNERS LLC
CRD#: 135414 / SEC#: 801-64294, 8-66985
RIA
Registered Investment Advisory firm - SEC (5/6/2005 Approved)BD
Broker-Dealer Firm Regulated by FINRA (Chicago district office)
State Registrations and Notice Filings
Listed states reflect where the advisor is authorized to serve clients under state regulations.
RR
indicates the advisor is registered as a Registered Representative in this state, allowing them to offer securities such as stocks, bonds, and mutual funds through a broker-dealer.Visual representation of state registrations
RR
Connecticut(10/9/2019)
RR
Florida(4/30/2019)
RR
Ohio(2/3/2015)
RR
Pennsylvania(10/9/2019)
Exams
General Industry/Product Exam
RR
Series 7TO
Date: 1/2/2023
General Securities Representative ExaminationGeneral Industry/Product Exam
RR
Series 57TO
Date: 1/2/2023
Securities Trader ExamGeneral Industry/Product Exam
General Industry/Product Exam
RR
Series 55
Date: 11/24/2001
Limited Representative-Equity Trader ExamGeneral Industry/Product Exam
General Industry/Product Exam
RR
PC
Date: 9/2/1977
AMEX Put and Call ExamGeneral Industry/Product Exam
RR
Series 1
Date: 6/16/1973
Registered Representative ExaminationSRO Registrations
RR
FINRA
Current Firm
MP
MCDONALD PARTNERS LLC
MCDONALD MANAGEMENT LLC | THOMAS MCDONALD PARTNERS, LLC | THOMAS MCDONALD & ASSOCIATES LLC | THOMAS MCDONALD & ASSOCIATES | MPCF LLC | MPCF II LLC | MP127 LLC | MP DPI LLC | MCDONALD USAF GP LLC | MCDONALD PARTNERS LLC
CRD#: 135414 / SEC#: 801-64294, 8-66985
RIA
Registered Investment Advisory firm - SEC (5/6/2005 Approved)BD
Broker-Dealer Firm Regulated by FINRA (Chicago district office)
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Contact information
Main Address
1301 East 9th Street Suite 3700, Cleveland, OH 44114
Mailing Address
1301 East 9th Street Suite 3700, Cleveland, OH 44114
Phone number
(216) 912-0567
Established
Ohio since 04/05/2005
Firm type
Limited Liability Company
Fiscal year end
December
Firm Size
Small
# of Employees
33
SEC notice filing (42 States and Territories)
FINRA licenses (48 States and Territories)
Direct owners and executive officers
| Name | Position | CRD# |
|---|---|---|
| MCDONALD, THOMAS MARION | OWNER | 326904 |
| MCDONALD, ARNOLD BEATTY | FINANCIAL & OPERATIONS PRINCIPAL | 5126644 |
| MCDONALD, ARNOLD BEATTY | CEO/CFO/MUNI PRINCIPAL/OWNER | 5126644 |
| MCDONALD, BRIAN ANDREW | OWNER | 3037343 |
| RAFAT NAIN NEMRY | OWNER | |
| HARTZLER, JONATHAN DANIEL | CHIEF COMPLIANCE OFFICER | 5163442 |
| HEGARTY, WILLIAM MAURICE JR | CHIEF INVESTMENT OFFICER | 2784174 |
| MANSOUR, RITA | OWNER | 1968418 |
| MCARDLE, JOHN EDWARD III | OWNER | 5386698 |
| NORTON, TIMOTHY PATRICK | OWNER | 726982 |
Regulatory assets under management
| Total Number of Accounts | 2,024 |
| AUM (Assets Under Management) | $ 1,287,456,830 |
Disclosures
| Regulatory Event | 5 |
| Arbitration | 1 |
Accountant surprise examination report
| Filing Date | Form ADV-E Cover | Form ADV-E Report |
|---|---|---|
| 10/02/2025 | ||
| 10/02/2025 | ||
| 01/06/2025 | ||
| 01/06/2025 | ||
| 09/18/2023 | ||
| 09/18/2023 | ||
| 01/04/2023 | ||
| 01/04/2023 |
Red Flags
Disclosures can be potential red flags, including customer disputes, regulatory fines, employer terminations, bankruptcies, judgments, liens, or certain criminal activities.
Check for any disclosures as part of your thorough research when choosing an advisor.
